Substitute foe



NTTED STATES PATENT OFFICE.

AARON BROOKS, OF CRAVFOBD COUNTY, INDIANA.

SUBSTITUTE FOR CRANKS.

Specication of Letters Patent No. 21,061,`dated August 3, 1858.

T 0 all whom t may concern:

Beit known that I, AARON BROOKS, of the county of Crawford and State of Indiana, have invented a new and improved inode of dispensing with a crank which has heretofore been attached to a shaft propelled by either water or steam.

The nature of my invention consists of a. shaft ot' any size or length that may be required of wood or cast iron, with a cast wheel or wheels of any size attached to one or both ends of said shaft as the oase niay require to give a sweep of 1S or 24 inches or six feet it necessary with a groove on the outside of said wheel, with a Slide or roller in the said groove with a perpendicular pitinan being of wood or iron and being made fast to the slide or roller with an iron bolt or AARON BROOKS.

Attest:

JAMES Cmsr, J. H. MEYLoN. 

